Crew members push Brad Keselowski's No. 2 Ford through a soaked parking lot outside of the garage area at Charlotte Motor Speedway on Thursday. Testing of the new NASCAR Gen-6 Sprint Cup Series Car at Charlotte Motor Speedway was put on hold due to rain. Davis Turner, USA TODAY Sports

A person walks across the wet infield parking area of the Charlotte Motor Speedway on Thursday, Jan. 17, 2013. Teams will be back on the track Friday at 9 a.m. ET after Thursday's testing was canceled because of rain. Davis Turner, USA TODAY Sports

A team member puts a sticker on the No. 55 Aaron's car in the garage during NASCAR testing at Charlotte Motor Speedway on Thursday. The planned two-day session was cut in half by persistent wet weather. Streeter Lecka, Getty Images